Machine for treating the surface of at least one textile web of endless fabric, especially for napping and/or emerizing or the like

ABSTRACT

The invention relates to a machine for treating the surface of at least one textile web of endless fabric, especially for napping and/or emerizing or the like, wherein the machine has at least a drum with a planetary-like, driven working roll (napping roll and/or emerizing roll or the like). The invention is characterized in that the drum ( 3 ) is mounted on a cylindrical support body ( 9 ) fixed on the machine frame ( 10 ) in such a way that it can rotate and be driven.

The invention relates to a machine for treating the surface of at leastone textile web of endless fabric, especially for napping and/oremerizing or the like, where the machine has at least one drum withplanetary-like, driven working rolls (napping rolls and/or emerizingrolls or the like).

A napping machine is known (DE-DD-PS 213 249, in which the drum is openon the side and mounted on running rollers arranged on the inside of thedrum circumference, that is, the rosette circumference. A cleaningdevice that serves to clean the napping rolls and is connected with asuction device located outside of the napping machine on the line side,is arranged inside the drum. This cleaning device has at least onecleaning roll arranged within a so-called dust funnel.

With this solution, it is possible to utilize the outer drumcircumference as extensively as possible for the treatment process ofthe textile web of endless fabric. Accordingly, this increases theperformance capacity of such napping machines as compared withconventional napping machines, in which the cleaning device is assignedto the outer drum circumference. The aim is to further improve thisadvantageous solution, with regard to mounting of the drum.

In a napping machine described in DE-PS 196 19 894, the drum is held atits two circumferential length edges, in each instance, in a ring-shapedball bearing, approximately corresponding in size to the diameter of thedrum, where the one ball bearing bushing belongs to the drum and theother ball bearing bushing belongs to the machine frame. By arrangingthe cleaning device inside the drum, here again it is possible, justlike in the solution according to DE-DD-PS 213 249, to utilize the outerdrum circumference as extensively as possible for the treatment processof the textile web of endless fabric.

However, because of the relatively large diameter of these ballbearings, the use of such bearings under these conditions of use reuires a large amount of production effort to create the surface on themachine frame onto which the bearings are screwed. For another thing,because of the large diameter of these ball bearings, and because of therotation of the drum that is necessary for the napping process, thereare relatively high circumference velocities within the bearing. Theseresult not only in rapid wear, but also in relatively loud runningnoises of these bearings.

Furthermore, lubrication of these bearings must take place at relativelyshort intervals of operating hours, which is another disadvantage. Thislubrication is not only complicated, but also re uires a special seal ofthe bearings and a special device for removing used grease, in order toprevent the lubricant from coming out.

For another thing, it also cannot be avoided that because of thearrangement of the gear crown that is necessary to drive the drum, onone bearing bushing in each instance, and in spite of the suctioneffect, part of the lint, dust and/or dirt particles that occur duringthe napping process will settle in the foot regions of the gear toothpairs in each instance, which especially increases the cleaning andmaintenance effort, and therefore the destruction of these bearings,that is, the gear tooth pairs, cannot be precluded.

The invention is based on the task of creating a drum bearing,particularly with a cleaning device arranged within the drum, thatallows not only relatively little production effort but also greateruietness in operation, and is subject to significantly less wear.

The solution according to the invention, for a machine for treating thesurface of at least one textile web of endless fabric, especially fornapping and/or emerizing or the like, where the machine has at least onedrum with planetary-like, driven working rolls (napping rolls and/oremerizing rolls or the like), consists in that the drum is mounted on acylindrical support body fixed on the machine frame in such a way thatit can rotate and can be driven.

The support body is rigidly attached to the machine frame, specificallyby means of a releasable connection, and the bearing locations for atleast one cleaning roll are attached to the support body.

The bearing locations for at least one cleaning roll arranged within thedrum are arranged within the drum.

Furthermore, the dust funnel is attached to the support body, and thesupport body has openings, within the drum, that project predominantlyinto the dust funnel arranged within the drum.

At least up to its exit from the drum, the support body also forms partof a suction line leading to a suction device.

Furthermore, at least two bearing surfaces for the rosettes that help toform the drum are present on the support body. At least one rosettemounted on the support body has at least one hub for drive of the drumand/or one hub for drive of at least one cleaning roll arranged insideand/or outside of the drum. The hubs have a profile on their outsidecircumference as re uired in accordance with the drive means in eachinstance.

At least one supply and/or discharge line can be arranged within thesupport body.

With the solution according to the invention, mounting of the drum isimproved in advantageous manner. Significant simplification of theproduction of the bearing surfaces for the drum takes place. For anotherthing, very uiet running of the drum, a reduction in maintenance effort,and a corresponding long useful lifetime of the bearing are achieved.

A significant advantage of the inventive drum bearing is also that whileutilizing the advantages with regard to the arrangement of at least onecleaning device within the drum and the resulting possibility that theoutside drum circumference for the treatment process of at least onetextile web of endless fabric is utilized as extensively as possible,this support body can be simultaneously used as a line for suctioningoff the lint, dust and/or dirt particles removed from the nappingrollers using the cleaning device, that is, at least one correspondingdischarge and/or supply line can be arranged in it.

The invention will be explained in greater detail below, on the basis ofan exemplary embodiment. In the related drawing,

FIG. 1 shows a schematic representation of a drum of a machine fornapping at least one textile web of endless fabric, in cross-section,and

FIG. 2 shows a cross-section along line I—I according to FIG. 1.

As is evident from FIG. 1 and FIG. 2, the essential elements of amachine for napping of at least one textile web 1 of endless fabric are,among others, a drum 3 e uipped with napping rolls 2, and one tensionroll 4 located ahead of the drum 3 and one located behind the drum, ineach instance. It is also possible to arrange a deflection roll betweenthe drum 3 and the tension roll 4 that follows it. Because of thedifference in speed between the speed of the textile web 1 of endlessfabric and the circumference speed of the napping rolls 2, a nappingeffect is achieved on the textile web 1 of endless fabric.

The napping rolls 2 are mounted, on both ends, on the arc 311, in atleast one rosette 31, in each instance, in a planetary-like bearing thatcan be driven. These napping rolls 2 can be structured as rolls 21 thatgo against the grain of the fabric and/or as rolls 22 that go with thegrain of the fabric, depending on the napping effect to be achieved onthe textile web 1 of endless fabric, and they can be structured in thesame or a different ratio relative to one another. In the exemplaryembodiment shown in FIG. 1, the ratio of the rolls 21 against the grainto the rolls 22 with the grain is 1:1. However, other ratios of rolls 21against the grain to rolls 22 with the grain are also possible.Preferably, in this connection, the rolls against the grain are drivenon the one lengthwise end of the drum, via drive means 5, and the rolls22 with the grain are driven on the other lengthwise end of the drum,via drive means 6, at the speed and direction of rotation that isnecessary in each instance.

Inside the drum 3, there are cleaning rolls 7 that serve to clean thenapping rolls 2. In this connection, one cleaning roll 7 is provided forthe rolls 21 against the grain, and the other cleaning roll 7 isprovided for the rolls 22 with the grain. Drive of the cleaning rolls 7thus takes place as a function of the speed of rotation of the drum 3,in such a way that the type of cleaning roll 7, in each instance, cleansthe napping rolls 2 assigned to it.

The cleaning rolls 7 are located in the region of a so-called dustfunnel 8. This dust funnel 8 is attached to a support body 9 with acylindrical structure. The lint, dust and/or dirt particles removed fromthe napping rolls 2 using the cleaning rolls 7 are transported out ofthe interior of the drum 3 and thereby out of the machine by means ofthe openings 91 that are present in the support body 9 and predominantlyproject into the dust funnel 8, by a cylindrical suction deviceconnected with the support body 9, which is not shown, and is preferablylocated outside of the napping machine. For this purpose, the supportcylinder 9 preferably has corresponding attachment surfaces at its faceends for the channel that leads to the suction device. However, it isalso possible to attach the channel leading to the suction device onlyat one face end of the support body 9, on the line side, while the otherface end of the support body 9 is sealed. In this way, the support body9 simultaneously forms the suction tube that leads out of the drum 3 andout of the machine frame 10, for the lint, dust and/or dirt particlesremoved from the napping rolls 2 using the cleaning rolls 7. However,there is also the possibility of arranging at least one correspondingdischarge line within the support body 9.

Furthermore, there is the possibility of arranging at least one supplyand/or discharge line, for example for lubrication of the bearings, inthe support body 9.

As shown in FIG. 2, the support body 9 is preferably rigidly attached inthe frame walls 101 that are part of the machine frame 10 by means ofpreferably one releasable clamp connection 1, in each instance. Withthis rigid attachment of the support body 9 in the frame walls 101,further stabilization of the machine frame 10 is achieved, along withthe connections 102 that are attached between the frame walls 101 andthat are part of the machine frame 10.

On the support body 9, between the frame walls 101, there are bearingseats 92 for the drum 3. For this purpose, special fittings and contactsurfaces for roller bearings 12 are provided on the support body 9. Tomake the drawing easier to understand, the seals of the roller bearingswere not shown. The drum itself is mounted in these bearing seats 92 bymeans of its rosettes 31. For this purpose, each rosette 31 has at leastone hub. The hub 312 facing towards the frame wall 101 simultaneouslyserves to drive the drum 3 and, for this purpose, has a correspondingprofile on its outside circumference, e.g. gear teeth 313 with a toothedbelt drive. However, other types of drives are also possible, forexample a V-belt drive, a chain drive or the like, in order to allowangle-synchronous drive of the drum 3.

The hub 314 that is directed into the interior of the drum 3 also hasgear teeth 315 for a toothed belt drive 13 of the cleaning rolls 7. Hereagain, different types of drives are possible, for example a V-beltdrive, chain drive or the like.

Likewise, corresponding bearing locations 14 are attached on the supportbody 9, inside the drum 3, in which the cleaning rolls 7 are mounted sothat they can be driven.

No further details of the napping machine, such as drive, control,regulation, etc. are shown, in order to keep the drawing as simple aspossible.

The invention was explained in greater detail using the example of amachine for napping at least one textile web 1 of endless fabric withtwenty-four napping rolls 2. However, it is also possible to e uip thedrum 3 with a different number of napping rolls 2, where the drum 3 hasthe corresponding size, without thereby departing from the scope of theidea of the invention.

Thus, it is also possible to replace the napping rolls 2 (a type ofworking roll) mounted in the drum 3, in their entirety, or only a partof the napping rolls 2, with emerizing rolls (another type of workingroll), so that the drum 3 is e uipped with napping rolls and/or withemerizing rolls.

It is also possible to use other working rolls re uired for finishingtextile webs of endless fabric, such as beating rolls, brushing rolls orthe like, individually or in combination with at least one other type ofworking roll, again without departing from the scope of the idea of theinvention.

Furthermore, there is also the possibility of using the support body 9for mounting such a drum 3, which has a cleaning device 7 and 8 on itsoutside circumference, or at least one cleaning device 7 and 8 in thedrum 3 and one on its outside circumference, in each instance.

The advantages of the solution according to the invention are not only arelatively lesser production effort, but also greater uietness of themachine in operation, and less wear of the bearing of the drum 3. In thesolution according to the invention, simple replacement of the drivemeans, particularly the ones for the working rolls, is alsoadvantageous.

LISTING OF THE REFERENCE SYMBOLS USED

1 textile web of endless fabric

2 napping roll

21 napping roll against the grain

22 napping roll with the grain

3 drum

31 rosette

311 arc

312 hub

313 gear teeth

314 hub

315 gear teeth

4 tension roll

5 drive means

6 drive means

7 cleaning roll

8 dust funnel

9 support body

91 openings

92 bearing seat

10 machine frame

101 frame wall

102 connection

11 releasable clamp connection

12 roller bearing

13 toothed belt drive

14 bearing location

What is claimed is:
 1. A machine for treating the surface of at leastone textile web of endless fabric, comprising: a machine frame; asupport body fixed on the machine frame, said support body beingcomprised of a cylindrically-shaped tube structure; and at least onedrum including driven working rolls arranged in planetary fashion, saiddrum being mounted on said support body in such manner that said drumcan rotate about said support body and can be driven.
 2. The machineaccording to claim 1, wherein the support body is rigidly attached inthe machine frame.
 3. The machine according to claim 1 or 2, wherein thesupport body is rigidly attached in the machine frame by structureproviding a releasable connection.
 4. The machine according to claim 1or 2, further comprising bearing locations for at least one cleaningroll, said bearing locations being attached on the support body.
 5. Themachine according to claim 1 or 2, further comprising: at least onecleaning roll arranged within the drum; and bearing locations for saidat least one cleaning roll, said bearing locations being arranged withinthe drum and being attached on the support body.
 6. The machineaccording to claim 1 or 2, wherein the drum includes at least onerosette and at least two bearing seats for said at least one rosette,said at least two bearing seats being present on the support body. 7.The machine of claim 1 or 2, wherein said drum includes at least onerosette mounted on the support body, said at least one rosette includingat least one hub, said at least one hub being for at least one of driveof the drum and drive of at least one cleaning roll.
 8. The machineaccording to claim 1 or 2, further comprising at least one rosette, saidat least one rosette including at least one hub mounted on the supportbody, said at least one hub having a profile on an outside circumferencethereof correspondingly configured with a respective drive means.
 9. Themachine according to claim 1 or 2, wherein at least one line serving asone of a supply and discharge line is arranged within the support body.10. A machine for treating the surface of at least one textile web ofendless fabric, comprising: a machine frame; a cylindrical support bodyfixed on the machine frame; at least one drum including driven workingrolls arranged in planetary fashion, said drum being mounted on saidcylindrical support body in such manner that said drum is drivable androtatable; and a dust funnel attached to the cylindrical support body.11. The machine according to claim 10, wherein the cylindrical supportbody is rigidly attached in the machine frame.
 12. A machine fortreating the surface of at least one textile web of endless fabric,comprising: a machine frame; a cylindrical support body fixed on themachine frame; at least one drum including driven working rolls arrangedin planetary fashion, said drum being mounted on said cylindricalsupport body in such manner that said drum is drivable and rotatable;and a dust funnel arranged within said drum, said cylindrical supportbody having openings within the drum predominantly projecting into thedust funnel.
 13. The machine according to claim 12, wherein thecylindrical support body is rigidly attached in the machine frame.
 14. Amachine for treating the surface of at least one textile web of endlessfabric, comprising: a machine frame; a cylindrical support body fixed onthe machine frame; and at least one drum including driven working rollsarranged in planetary fashion, said drum being mounted on saidcylindrical support body in such manner that said drum is drivable androtatable, the support body being structured as part of a suction lineleading to a suction device at least up to an exit of said cylindricalsupport body from the drum.
 15. The machine according to claim 14,wherein the cylindrical support body is rigidly attached in the machineframe.
 16. A machine for treating the surface of at least one textileweb of endless fabric, comprising: a machine frame; a cylindricalsupport body fixed on the machine frame; at least one drum includingdriven working rolls arranged in planetary fashion, said drum beingmounted on said cylindrical support body in such manner that said drumis drivable and rotatable; at least one cleaning roll arranged insidethe drum; and said at least one drum further including at least onerosette mounted on the cylindrical support body, said at least onerosette including a first hub for drive of the drum and a second hub fordrive of said at least one cleaning roll.
 17. The machine according toclaim 16, wherein the cylindrical support body is rigidly attached inthe machine frame.